The question is why are there so many to start with... there must be a breakdown of the reef demographics to allow one species to overrun the area. Maybe because of overfishing of the predators or some other reason... I don’t agree with human interference on a reef as this would be the main cause, but saying that, if it has to be done to control then it’s ok I guess... I would leave it to the professionals tho as their sting is nasty :o)